What causes the green color of plant leaves?
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The green color of plant leaves is caused by the pigment chlorophyll, which plays a key role in photosynthesis. Chlorophyll absorbs light primarily in the blue and red parts of the light spectrum and reflects green light, which is why leaves appear green to our eyes. This pigment is essential for the process of converting sunlight, water, and carbon dioxide into glucose and oxygen, which provides energy for the plant and supports life on Earth.